| 摘要 |
<p>1,271,457. Dehydrogenation process. PETROTEX CHEMICAL CORP. 11 July, 1969 [20 Aug., 1968], No. 35087/69. Heading C2C. [Also in Division C5] Organic compounds are dehydrogenated by reacting a gaseous mixture of the starting material and Cl 2 , Br 2 or a chlorine- or brominecontaining compound in amount not more than 2000 p.p.m. by weight halogen element, with oxygen or other oxidant in the presence of a catalyst comprising a crystalline structure containing iron, oxygen and at least one other metallic element. Reactions specifically mentioned are: propionitrile to acrylonitrile, propionaldehyde to acrolein, ethyl chloride to vinyl chloride, methyl isobutyrate to methylmethacrylate, 2-chlorobutene-1 or 2,3-dichlorobutane to chloroprene, ethyl pyridine to vinyl pyridine, and ethyl acetate to vinylacetate.</p> |
